Spring-mattress



UNITED STATES CHARLES EDWARD DOW'SETT, 0F DERBY, ENGLAND.

sparire-MATTRESS.

Specification of Letters Patent.

Patented Feb. `8, 1921.

.lpplcaton led January 22, 1919. Serial No. 272,411.

Z'o all 'wim/m t may concern:

Be it known that I, CHARLES EDWARD Dowsu'rr, a subject of the lling ot' Great Britain and Ireland, residing at 308 Normanton road7 Derby, in the county of Derby, England, have invented new and useful lmprovements in Spring-Mattresses. of which the following is a specification.

Referring to the drawings which form a part of this specification Figure l is a plan or a spring mattress showing the application ot my invention.

Fig. 2 is a section on line 3 3 ot Fig. l.

This invention relates to the type of spring mattress in which bolts e are used for tightening up the woven-wire part or mattress proper 5 which is secured to a piece having longitudinal movement, and through which the bolts pass, project inward thereof and under the wire work or the like; the latter in course ot time becomes worn by continually rubbing on said bolts.

The object of my invention is to protect the mattress and in carrying the same into eii'ect tix suitably shaped shields or protectors 'I on the part capable oil longitudinalmovement or upcn the under side of the mattress 5 to lie between the latter and the bolts. As shown herein, the shields are formed of plates of sheet metal, which plates are rounded or beveled at the corners so that all of the angles formed by the intersecting edges ot each of the plates are ob* tuse angles, whereby the mattress is pro tected from Contact with sharp corners. It will also be observed that the plates are ot' such length and so located as to at all times present a portion of the plates between the woven wire mattress and the stretching bolts so as to prevent Contact of the mattress with the bolts.

Having now described my invention what l claim as new and desire to secure by Letters Patent is In a woven wire mattress having means for stretching the same, a plurality ot' protecting shields comprising sheet metal plates, the intersecting edges of each of said plates forming obtuse angles thereby to prevent Contact of the mattress with sharp corners, the plates being of such length and so located as to at all times present a portion of the plate between the mattress and its stretching means.

, In testimony whereof I have signed my name to this specification.

CHARLES EDWARD DOWSETT. 

